Issue Date: July 27, 2015
As Helium Prices Rise, Universities Consider Recycling The Element
Sophia E. Hayes and her research group at Washington University in St. Louis depend on liquid helium to cool the magnets in their nuclear magnetic resonance instruments to a superconducting temperature of 4 K. Her chemistry lab, which in part uses the instruments to study the structure of metal oxide clusters, runs through an average of 157 L of liquid helium every month.
Hayes has watched liquid helium prices balloon from . . .
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